Study Population and screening: Healthy young women with a BMI > 30 will be recruited; 12 will have a gynoid pattern as defined by a waist-to-hip ratio less than 0.78 and 12 with an android pattern as defined by a waist-to-hip greater than 0.85. A third group will include 12 women with PCOS as defined by the NIH criteria. Subjects will be recruited via a dedicated website, physician referrals, direct mail outs, newspaper advertisements, and brochures. Only subjects that will sign informed consent and meet eligibility criteria will be enrolled in this study.